Hey thereI don't have the same problem.. I just did a lab recreate:Switch#sh verCisco Internetwork Operating System Software IOS (tm) C2950 Software (C2950-I6Q4L2-M), Version 12.1(13)EA1b, RELEASE SOFTWARE (fc1)Copyright (c) 1986-2003 by cisco System...

Hey thereThe version that you are running does indeed support Dot1Q trunking. You didn't specify which router, but the bottom line is that Dot1Q encapsulation is specified on the SUB-INTERFACES, not on the main interface. The main interface holds t...

It depends on the Supervisor and Operating system you are using.Cat 4006 with SupI or Sup II and Cat OS:clear config allCat 4006 with Sup III or IV and IOS:wr erasereload(answer N to save config)Hope this helps,LW

You are correct.The Cat 4006 output does list the chassis serial number.In the case of the 3548.. you want to grab the system serial number not the motherboard serial number.See below:cisco WS-C3524-XL (PowerPC403) processor (revision 0x01) with 8192...